I intend to close the forum/community. It has not worked, and I think a better avenue will simply be registering users from swarb.co.uk and encouraging conversation within the davidswarbrick.co.uk site.
The facility has not attracted support, and I have never been quite comfortable that the set up works. In addition it generates many spam registrations. These take several minutes every day to get rid of, for no signficant return.
I will try to use the basic WordPress system for discussions. I am sure it will not be as good, but a basic conversation structure is all that is needed.